MidWest Products 3019 N Cork Roadbed Corksheet Pack 3mm x 36" Single Section NIB
25 pieces per box. 1/8 (3 mm) x 1-1/8 x 36. Midwest's "N" Scale Cork Roadbed resembles the ballast used on real railroads. Its beveled edges enhance this realism. It has consistent thickness, is lightweight, cuts and shapes easily and offers excellent sound absorption. Each cork roadbed section is 3mm thick and 3 feet long (two strips to each section).